IC power protection circuit

Details IC power protection circuit IC power protection circuit

2007-01-24

2010-02-02

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

C361S082000, C361S084000, C361S091100, C361S091500

Reexamination Certificate

active

07656624

ABSTRACT:
An IC power protection circuit functions as a surge protection circuit and reverse connection protection circuit. The IC power protection circuit includes an error amplification circuit, positioned and integrated within an integrated circuit and a transistor positioned as a stand-alone element that is separate from the integrated circuit. The integrated circuit includes a sensor signal processing circuit that processes a signal of a sensor. A transistor protects the integrated circuit against a surge voltage from a battery terminal. A resistor is positioned between an output terminal of an error amplifier and a base terminal of the transistor to provide reverse connection protection. Another resistor is connected between a ground and a connection point between the above resistor and the output terminal to provide overvoltage protection for the integrated circuit. A starting resistor is connected between a collector and base of the transistor.

REFERENCES:
patent: 4008418 (1977-02-01), Murphy
patent: 4186418 (1980-01-01), Seiler
patent: 5771140 (1998-06-01), Kim
patent: 6154082 (2000-11-01), Bernard et al.
patent: 7312967 (2007-12-01), Niiyama et al.
patent: 2004/0150930 (2004-08-01), Niiyama et al.
patent: 1521913 (2004-08-01), None
patent: 196 05 628 (1997-05-01), None
patent: 2 782 581 (2000-02-01), None
patent: 7-147727 (1995-06-01), None
patent: 10-074114 (1998-03-01), None
patent: 200-112542 (2000-04-01), None
patent: 2000-322136 (2000-11-01), None
patent: 2001-337729 (2001-12-01), None
patent: 2004-208449 (2004-07-01), None
patent: 56-156110 (2005-03-01), None
patent: 2005-083221 (2005-03-01), None
patent: WO02/29950 (2002-04-01), None

Affiliated with

Also associated with

Rating

IC power protection circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with IC power protection circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IC power protection circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4163717